Abap Summarize data in an infoset for queries

Question

Hi all Experts,
I'm still newbie in Abap and query and my request is on the best way to summarize values in an infoset code ?
The requested infoset must report the total goods issues
of a year for some movements code only.
I have tested this way for the year before without succes :
DATA  ICONSO1 LIKE MSEG OCCURS 0 with header line.
DATA : CONS_Y_1 like MVER-GSV01.
DATA : CONS_YEAR1 .
CONS_YEAR1 = SY-DATUM+0(4).
CONS_YEAR1 = CONS_YEAR1 - 1 .
CLEAR CONS_Y_1.
SELECT * FROM MSEG INTO CORRESPONDING FIELDS OF ICONSO1
WHERE  MATNR = MBEW-MATNR AND WERKS = MARD-WERKS
AND MEINS = MARA-MEINS
AND LGORT <> '0005'
AND BWART IN ('261','961') .
LOOP at ICONSO1  WHERE MJAHR = CONS_YEAR1 .
CONS_Y_1 = CONS_Y_1 + ICONSO1-MENGE.
ENDLOOP.
ENDSELECT.
But CONS_A_1 still remains empty..
What I'm doing wrong an what is the best practice ?
Thanks by advance for any help, I'll do not forget points !
Kind regards,
Jean-Michel

Answer 1

May try this way
DATA ICONSO1 LIKE MSEG OCCURS 0 with header line.
DATA : CONS_Y_1 like MVER-GSV01.
DATA : CONS_YEAR1 .
CONS_YEAR1 = SY-DATUM+0(4).
CONS_YEAR1 = CONS_YEAR1 - 1 .
CLEAR CONS_Y_1.
SELECT * FROM MSEG INTO CORRESPONDING
FIELDS OF TABLE ICONSO1       "<<<
WHERE MATNR = MBEW-MATNR AND WERKS =   MARD-WERKS
AND MEINS = MARA-MEINS
AND LGORT '0005'
AND BWART IN ('261','961') .
IF SY-SUBRC EQ 0.
  LOOP at ICONSO1 WHERE MJAHR = CONS_YEAR1 .
    CONS_Y_1 = CONS_Y_1 + ICONSO1-MENGE.
  ENDLOOP.
ENDIF.
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